High-Voltage Box, Battery, and Electrical Device

The present application is a continuation of International Application No. PCT/CN2024/098414, filed on Jun. 11, 2024, which claims priority to Chinese Patent Application No. 202311379260.X, filed on Oct. 23, 2023 and entitled “HIGH-VOLTAGE BOX, BATTERY, AND ELECTRIC DEVICE”, the content of each are incorporated herein by reference in its entirety.

The present application relates to the field of energy storage, and in particular, to a high-voltage box, a battery, and an electric device.

Energy conservation and emission reduction are the key to sustainable development of the automobile industry. Electric vehicles have become an important part of the sustainable development of the automobile industry due to their energy-saving and environmental protection advantages. For electric vehicles, the battery technology is an important factor in their development.

In view of the above problem, the present application provides a high-voltage box, a battery, and an electric device, which can increase the assembly rate of the battery.

In a first aspect, the present application provides a high-voltage box for a battery. The high-voltage box includes: a first housing, having a wall part and an accommodating space defined by the wall part in an enclosing manner, where the accommodating space is configured to accommodate an electric component; and an electric connector, disposed in the first housing, where the electric connector includes a plurality of terminals and conductive connection parts, each of the conductive connection parts is connected to at least one of the terminals and is integrally formed with the terminal, and the terminal is configured to connect to the electric component.

In the technical solution of the embodiments of the present application, the high-voltage box includes the first housing and the electric connector, and the wall part of the first housing defines, in an enclosing manner, the accommodating space, such that the electric component can be disposed in the accommodating space. The electric connector includes the terminal and the conductive connection part. The terminal is configured to connect to the electric component, and the conductive connection part is connected to at least one terminal. In addition, the conductive connection part and the terminal are integrally formed, eliminating the need for a secondary mating between the conductive connection part and the terminal within the high-voltage box. Therefore, the assembly process of the high-voltage box can be simplified, and the assembly efficiency of the high-voltage box is improved, thereby increasing the assembly rate of the battery.

In some embodiments, the terminal includes a body part and a jaw part that are integrally connected, the body part defines, in an enclosing manner, a hollow zone, and the jaw part is connected to an edge of the hollow zone and is bent upward in a thickness direction of the body part.

In these embodiments, the terminal includes a body part and a jaw part, the body part is provided with a hollow zone, and the jaw part is connected to a peripheral side of the hollow zone, such that the jaw part can be formed by stamping a plate member, and the jaw part is bent upward relative to the body part, facilitating connection between the jaw part and the connecting part of the electric component.

In some embodiments, the wall part includes a connecting hole provided in a penetrating manner, and the jaw part and the connecting hole are arranged in a corresponding manner, such that the jaw part is capable of connecting to the electric component via the connecting hole.

In these embodiments, the wall part is provided with a connecting hole, such that the connecting part of the electric component is capable of extending into the connecting hole to connect to the jaw part.

In some embodiments, the jaw part includes two or more jaw plates, each of the jaw plates is connected to at least one side in a circumferential direction of the hollow zone, and at least two jaw plates are disposed on two sides of the hollow zone and extend in a direction close to each other, such that the connecting part of the electric component is capable of being sandwiched between the two jaw plates.

In these embodiments, the jaw part includes a plurality of jaw plates, and at least two jaw plates are oppositely disposed on two sides of the hollow zone and extend in the direction close to each other. By using elastic force of the two jaw plates, an interference fit can be formed between the jaw plates and the connecting part of the electric component, such that the connecting part is capable of being snap-fitted between the two jaw plates. Therefore, the connection mode between the electric component and the jaw part can be simplified, and the stability of the electrical connection can be ensured.

In some embodiments, the body part is injection molded into the wall part, and the jaw part protrudes out of a surface of the wall part.

In these embodiments, the body part is injection molded into the wall part, such that the wall part can provide protection for the body part to alleviate scratches on the body part by other components. The jaw part protrudes out of the surface of the wall part, facilitating the electrical connection between the jaw part and the connecting part of the electric component. In addition, since the body part is injection molded into the wall part, the positional stability of the body part can be ensured. When the connecting part is snap-fitted to the jaw part, the impact of the unstable position of the jaw part on the stability of the electrical connection is alleviated.

In some embodiments, the conductive connection part is injection molded into the wall part.

In these embodiments, the wall part can provide protection for the conductive connection part, preventing the conductive connection part from being suspended in the accommodating space and affecting the mounting of other components.

In some embodiments, the electric connector further includes a plug-in end, at least one conductive connection part is connected between the terminal and the plug-in end, and the conductive connection part, the terminal, and the plug-in end that are connected to one another are integrally formed.

In these embodiments, some terminals are electrically connected to the outside through the plug-in end, such that the other end of some conductive connection parts is connected to the plug-in end. The conductive connection part, the terminal, and the plug-in end that are connected to one another are integrally formed, which can further simplify the structure of the electric connector. Moreover, there is no need to assemble the conductive connection part and the plug-in end in the high-voltage box. Therefore, the assembly process of the high-voltage box can be simplified, and the assembly efficiency of the high-voltage box is improved, thereby increasing the assembly rate of the battery.

In some embodiments, a plug-in port is further included. The plug-in end is plugged into the plug-in port, and the plug-in port is injection molded on the wall part.

In these embodiments, the plug-in port configured to accommodate the plug-in end is injection molded on the wall part, and there is no need to assemble the plug-in port and the first housing in the high-voltage box. Therefore, the assembly process of the high-voltage box can be simplified, and the assembly efficiency of the high-voltage box is improved, thereby increasing the assembly rate of the battery.

In some embodiments, the wall part includes a top wall and a side wall connected to a peripheral side of the top wall, the top wall and the side wall define, in an enclosing manner, the accommodating space, and the electric connector is disposed on the top wall.

In these embodiments, the electric connector is disposed on the top wall, facilitating electrical connection between the terminals of the electric connector and electric components at different positions in the accommodating space.

In some embodiments, the side wall is provided with a first snap part; and the high-voltage box further includes a second housing, the second housing is disposed on a side of the side wall facing away from the top wall, the second housing is provided with a second snap part, and the first housing and the second housing are snap-fitted to each other through the first snap part and the second snap part.

In these embodiments, the first housing and the second housing are snap-fitted to each other through the first snap part and the second snap part, which can simplify the assembly process of the first housing and the second housing, improve the assembly efficiency of the high-voltage box, and ensure the stability of the relative positions between the first housing and the second housing.

In a second aspect, the embodiments of the present application further provide a battery. The battery includes the high-voltage box according to the above first aspect.

In a third aspect, the embodiments of the present application further provide an electric device. The electric device includes the battery according to the above second aspect, and the battery is used to provide electrical energy.

The above description is only an overview of the technical solutions of the present application. To more clearly understand the technical means of the present application to enable implementation in accordance with the content of the specification and to make the above and other purposes, features, and advantages of the present application more obvious and easy to understand, the detailed description of the present application is provided below.

1 10 11 12 20 30 301 302 40 401 4021 4022 50 51 : vehicle;: battery;: controller;: motor;: battery cell;: housing;: upper cover;: lower housing body;: high-voltage box;: bottom housing;: first upper housing;: second upper housing;: electric component;: connecting part; 100 110 110 120 111 120 130 a a : first housing;: wall part;: top wall;: side wall;: connecting hole;: accommodating space;: first snap part; 200 210 211 212 212 213 220 230 a : electric connector;: terminal;: body part;: jaw part;: jaw plate;: hollow zone;: conductive connection part;: plug-in end; 300 : plug-in port; 400 410 : second housing;: second snap part; X: first direction; Y: second direction; Z: thickness direction. Reference numerals in the detailed description are as follows:

Embodiments of the technical solutions of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present application, and therefore, are only exemplary and do not limit the claimed scope of the present application.

It should be noted that, unless otherwise specified, the technical or scientific terms used in the embodiments of the present application shall have ordinary meanings understood by those skilled in the art to which the embodiments of the present application belong.

In the description of the embodiments of the present application, the technical terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise” “counterclockwise”, “axial”, “radial”, “circumferential” and the like indicate orientations or positional relationships based on those shown in the drawings. They are merely for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the apparatus or element referred to must have a specific orientation or be constructed and operated in the specific orientation, and thus should not be construed as a limitation to the embodiments of the present application.

In addition, the technical terms “first”, “second”, and the like are used for description only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. In the description of the embodiments of the present application, unless otherwise specifically defined, “plurality of” means two or more.

In the description of the embodiments of the present application, unless otherwise clearly specified and defined, the technical terms “mount”, “interconnect”, “connect”, “fix”, and the like should be interpreted in their broad senses. For example, they may be a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; or a direct connection, an indirect connection via an intermediate, a communication between interiors of two elements, or an interaction between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be interpreted according to specific conditions.

In the description of the embodiments of the present application, unless otherwise clearly specified and defined, a first feature being “above” or “below” a second feature may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact through an intermediate. Moreover, a first feature being “over”, “above”, and “on top of” a second feature may be that the first feature is right above or obliquely above the second feature, or may simply mean that the first feature is at a higher horizontal level than the second feature. A first feature being “under”, “below”, and “beneath” a second feature may be that the first feature is right under or obliquely under the second feature, or may simply mean that the first feature is at a lower horizontal level than the second feature.

At present, judging from the trends in the market, the application of power batteries is becoming increasingly widespread. Power batteries are not only applied in energy storage power systems such as hydropower, thermal power, wind power, and solar power stations, but also widely applied in electric transportation vehicles such as electric bicycles, electric motorcycles, or electric vehicles, as well as in military equipment, aerospace, and other fields. With the continuous expansion of the application field of power batteries, the market demand for power batteries is also constantly increasing.

In the present application, battery cells may include lithium-ion secondary battery cells, lithium-ion primary battery cells, lithium-sulfur battery cells, sodium-ion battery cells, etc., which are not limited in the embodiments of the present application.

The battery mentioned in the embodiments of the present application refers to a single physical module including one or a plurality of battery cells to provide higher voltage and capacity. For example, the battery mentioned in the present application may include a battery module, a battery pack, or the like. The battery generally includes a housing used to encapsulate one or a plurality of battery cells. The housing can prevent liquid or other foreign matters from affecting the charging or discharging of the battery cells.

A battery cell includes an electrode assembly and an electrolyte, and the electrode assembly includes a positive electrode plate, a negative electrode plate, and a separator. A battery cell primarily works by the movement of metal ions between the positive electrode plate and the negative electrode plate. The positive electrode plate includes a positive electrode current collector and a positive electrode active substance layer, and the positive electrode active substance layer is applied on the surface of the positive electrode current collector. The positive electrode current collector includes a positive electrode current collecting part and a positive electrode tab connected to the positive electrode current collecting part. The positive electrode current collecting part is coated with the positive electrode active substance layer, and the positive electrode tab is not coated with the positive electrode active substance layer. Taking lithium-ion batteries as an example, the material of the positive electrode current collector may be aluminum, the positive electrode active substance layer includes a positive electrode active substance, and the positive electrode active substance may be lithium cobaltate, lithium iron phosphate, ternary lithium, lithium manganate, or the like. The negative electrode plate includes a negative electrode current collector and a negative electrode active substance layer, and the negative electrode active substance layer is applied on the surface of the negative electrode current collector. The negative electrode current collector includes a negative electrode current collecting part and a negative electrode tab connected to the negative electrode current collecting part. The negative electrode current collecting part is coated with the negative electrode active substance layer, and the negative electrode tab is not coated with the negative electrode active substance layer. The material of the negative electrode current collector may be copper, the negative electrode active substance layer includes a negative electrode active substance, and the negative electrode active substance may be carbon, silicon, or the like. The material of the separator may be polypropylene (PP), polyethylene (PE), or the like.

A high-voltage box is provided inside the battery, and the high-voltage box is configured to accommodate high-voltage electric components such as a relay. These electric components require real-time control and sampling. Both control and sampling necessitate the use of a terminal-crimped wire harness to connect all the electric components together, and then the electric components are placed into the high-voltage box for assembly and mounting. The assembly process is complex, time-consuming, and labor-intensive.

To alleviate the above technical problem, the terminal and the wire harness may be formed using an integral forming process, eliminating the need for assembling and connecting the terminal and the wire harness within the high-voltage box, thereby improving the assembly efficiency of the high-voltage box and reducing the assembly time of the high-voltage box.

The technical solutions described in the embodiments of the present application are suitable for batteries and electric devices using batteries.

The electric device may be a vehicle, a mobile phone, a portable device, a laptop computer, a ship, a spacecraft, an electric toy, an electric tool, or the like. The vehicle may be a petrol or diesel vehicle, a natural gas vehicle, or a new energy vehicle, and the new energy vehicle may be a pure electric vehicle, a hybrid electric vehicle, an extended-range vehicle, or the like; the spacecraft includes an airplane, a rocket, a space shuttle, a spaceship, and the like; the electric toy includes a stationary or mobile electric toy, such as a game console, an electric car toy, an electric ship toy, and an electric airplane toy; the electric tool includes an electric metal cutting tool, an electric grinding tool, an electric assembling tool, and an electric tool for railways, such as an electric drill, an electric grinder, an electric wrench, an electric screwdriver, an electric hammer, an electric impact drill, a concrete vibrator, and an electric planer. The electric devices described above are not specially limited in the embodiments of the present application.

It should be understood that the technical solutions described in the embodiments of the present application are not limited to the batteries and electric devices described above. They are also applicable to all batteries that include a housing, as well as electric devices that utilize batteries. However, for brevity, the following embodiments are described using an electric vehicle as an example.

1 FIG. 1 FIG. 1 1 10 1 10 1 10 1 10 1 1 11 12 11 10 12 1 Referring to,is a schematic structural diagram of a vehicleaccording to some embodiments of the present application. The vehiclemay be a fuel vehicle, a gas vehicle, or a new energy vehicle. The new energy vehicle may be a pure electric vehicle, a hybrid vehicle, an extended-range vehicle, or the like. A batteryis disposed inside the vehicle, and the batterymay be disposed at the bottom, head, or tail of the vehicle. The batterymay be configured to power the vehicle. For example, the batterymay serve as an operation power source of the vehicle. The vehiclemay further include a controllerand a motor. The controlleris configured to control the batteryto supply power to the motor, e.g., for operation power needed by the vehiclefor start-up, navigation, and driving.

10 1 1 1 In some embodiments of the present application, the batterymay not only serve as an operation power source for the vehicle, but also as a driving power source for the vehicleto, instead of or in part instead of fuel or natural gas, provide driving power for the vehicle.

10 To meet different power usage requirements, the batterymay include a plurality of battery cells, and a battery cell refers to the smallest unit that forms a battery module or a battery pack. A plurality of battery cells may be connected in series and/or in parallel via electrode terminals to be applied to various application scenarios. The battery mentioned in the present application includes a battery module or a battery pack. The plurality of battery cells may be connected in series, in parallel, or in series-parallel. The series-parallel connection refers to a combination of series connection and parallel connection. In the embodiments of the present application, a plurality of battery cells may be directly assembled into a battery pack, or may be first assembled into a battery module, which is then assembled into a battery pack.

2 FIG. 10 shows a schematic structural diagram of a batteryaccording to an embodiment of the present application.

2 FIG. 10 30 30 30 30 As shown in, the batteryincludes a housingand a battery cell disposed in the housing. The housingmay be of a simple three-dimensional structure such as a single rectangular parallelepiped, cylinder, or sphere, or may also be of a complex three-dimensional structure composed of simple three-dimensional structures such as a rectangular parallelepiped, a cylinder, or a sphere, which is not limited in the embodiments of the present application. The housingmay be made of an alloy material such as aluminum alloy and iron alloy, or a polymer material such as polycarbonate and polyisocyanurate foam plastic, or a composite material such as glass fiber plus epoxy resin, which is also not limited in the embodiments of the present application.

30 30 30 301 302 301 302 301 302 330 302 302 301 30 330 301 302 301 302 30 330 301 302 The housingis configured to accommodate the battery cell, and the housingmay be of a variety of structures. In some embodiments, the housingmay include an upper coverand a housing body. The upper coverand the housing bodyare lidded with each other, and the upper coverand the housing bodyjointly define an accommodating spacefor accommodating the battery cell. The first housing part may be a hollow structure with one end open, the housing bodyis of a plate-shaped structure, and the housing bodyis lidded onto the open side of the upper coverto form the housinghaving the accommodating space. The upper coverand the housing bodymay also each be a hollow structure with one side open, and the open side of the upper coveris lidded onto the open side of the housing bodyto form the housinghaving the accommodating space. Certainly, the upper coverand the housing bodymay be in various shapes, such as a cylindrical shape and a rectangular parallelepiped shape.

301 302 301 302 To improve the sealing performance between the upper coverand the housing bodyafter connection, a sealing member, such as a sealant or a seal ring, may be further provided between the upper coverand the housing body.

301 302 301 302 If the upper coveris lidded onto the top of the housing body, the upper covermay also be referred to as an upper housing body, and the housing bodymay also be referred to as a lower housing body.

20 20 20 20 30 20 30 Optionally, a plurality of battery cellsmay be connected in series, in parallel, or in series-parallel. The series-parallel connection means that both series connection and parallel connection are present for the connection among the plurality of battery cells. The plurality of battery cellsmay be directly connected in series, in parallel, or in series-parallel, and then the whole formed by the plurality of battery cellsis accommodated in the housing. Alternatively, the plurality of battery cellsmay be first connected in series, in parallel, or in series-parallel to form battery units, and then the plurality of battery units are connected in series, in parallel, or in series-parallel to form a whole and accommodated in the housing.

20 20 20 Optionally, the battery cellfurther includes a shell, and the shell may be configured to accommodate the electrode assembly, the electrolyte (not shown in the figure), and other components. The battery cellmay further include an end cover that is lidded onto the opening of the shell. The shell and the end cover may be independent components. An opening may be formed in the shell, and the end cover is lidded onto the opening at the opening to form the internal environment of the battery cell. Without limitation, the end cover and the shell may be integrated. Specifically, the end cover and the shell may form a common connection surface before other components are placed in the shell, and when the interior of the shell needs to be encapsulated, the end cover is lidded onto the shell. The shell may be in various shapes and dimensions, such as a rectangular parallelepiped, a cylinder, and a hexagonal prism. Specifically, the shape of the shell may be determined according to the specific shape and dimensions of the electrode assembly. The shell may be made of a variety of materials, such as copper, iron, aluminum, stainless steel, an aluminum alloy, and plastic, which is not specified in the embodiments of the present application.

20 20 In the present application, the battery cellmay include a lithium-ion battery cell, a sodium-ion battery cell, a magnesium-ion battery cell, or the like, which is not limited in the embodiments of the present application. The battery cellmay be cylindrical, or in other shapes. However, for the sake of brevity, the following embodiments are all illustrated using a prismatic battery cell as an example. A prismatic battery cell refers to a battery cell with a quadrangular prism shape.

3 4 FIGS.and 40 40 50 40 30 40 30 Referring to, a high-voltage boxis further disposed inside the housing, and the high-voltage boxis configured to arrange a high-voltage electric componentsuch as a relay. The high-voltage boxmay be disposed inside the housing, or the high-voltage boxis disposed outside the housing.

3 4 FIGS.and 40 100 200 100 110 120 110 120 50 200 100 200 210 220 220 210 210 210 50 As shown in, the high-voltage boxincludes a first housingand an electric connector. The first housinghas a wall partand an accommodating spacedefined by the wall partin an enclosing manner, and the accommodating spaceis configured to accommodate an electric component. The electric connectoris disposed in the first housing, the electric connectorincludes a plurality of terminalsand conductive connection parts, each of the conductive connection partsis connected to at least one of the terminalsand is integrally formed with the terminal, and the terminalis configured to connect to the electric component.

40 100 200 110 100 120 50 120 200 210 220 210 50 220 210 220 210 220 210 40 40 40 In the technical solution of the embodiments of the present application, the high-voltage boxincludes the first housingand the electric connector, and the wall partof the first housingdefines, in an enclosing manner, the accommodating space, such that the electric componentcan be disposed in the accommodating space. The electric connectorincludes the terminaland the conductive connection part. The terminalis configured to connect to the electric component, and the conductive connection partis connected to at least one terminal. In addition, the conductive connection partand the terminalare integrally formed, eliminating the need for a secondary mating between the conductive connection partand the terminalwithin the high-voltage box. Therefore, the assembly process of the high-voltage boxcan be simplified, and the assembly efficiency of the high-voltage boxis improved, thereby increasing the assembly rate of the battery.

40 40 401 100 40 40 40 4021 4022 4021 4022 401 100 4021 4022 200 4021 The high-voltage boxmay be configured in various ways. For example, the high-voltage boxincludes an upper housing and a bottom housingthat are connected to each other, and the first housingmay be the upper housing of the high-voltage box. The high-voltage boxmay also adopt a double-layer top cover configuration, that is, the high-voltage boxincludes two upper housings arranged in a stacked manner. The two upper housings are respectively a first upper housingand a second upper housing, with the first upper housingdisposed between the second upper housingand the bottom housing. The first housingmay be the first upper housing, such that the second upper housingcan provide protection for the electric connectordisposed on the first upper housing.

210 200 50 220 200 220 210 210 220 40 210 220 200 220 220 210 220 210 220 210 210 The terminalof the electric connectoris configured to connect to the electric component, and the conductive connection partof the electric connectoris equivalent to the above wire harness. The conductive connection partand the terminalare integrally formed, eliminating the need for connecting the terminaland the conductive connection partduring the assembly process of the high-voltage box. The terminaland the conductive connection partmay be manufactured and formed by stamping and cutting from a conductive sheet, or other processes. Optionally, the electric connectormay include a plurality of conductive connection parts, and the plurality of conductive connection partsare configured to connect to different terminals. The plurality of conductive connection partsand terminalsmay be simultaneously manufactured using the same conductive sheet before being cut, such that the plurality of conductive connection partsand the plurality of terminalsare separated from each other, preventing short-circuits between the plurality of terminals.

220 210 50 210 220 220 210 220 50 210 220 Optionally, the conductive connection partmay be connected between two terminals, such that two electric componentsconnected to the terminalscan be electrically connected to each other through the conductive connection part. Optionally, one end of the conductive connection partis connected to the terminal, and the other end of the conductive connection partmay be connected to a connector such as a plug-in member, such that the electric componentconnected to the terminalcan be electrically connected to an external device through the conductive connection partand the connector.

210 50 120 220 210 Optionally, the terminalcorresponds to the position of the electric componentin the accommodating space, and the conductive connection partextends along a bending path, such that the position of the terminalcan be arranged with greater flexibility.

220 210 220 210 220 210 220 210 Optionally, “being integrally formed” means that two parts may be processed and formed using the same plate. For example, the conductive connection partand the terminalmay be processed and formed using the same conductive plate, which can enhance the connection strength between the conductive connection partand the terminal. In addition, since the conductive connection partand the terminalare inherently connected to each other, there is no need to perform the operation of connecting the conductive connection partand the terminalto each other.

210 211 212 211 213 212 213 211 In some embodiments, the terminalincludes a body partand a jaw partthat are integrally connected, the body partdefines, in an enclosing manner, a hollow zone, and the jaw partis connected to the edge of the hollow zoneand is bent upward in the thickness direction Z of the body part.

210 211 212 211 213 212 213 212 212 211 212 51 50 In these embodiments, the terminalincludes a body partand a jaw part, the body partis provided with a hollow zone, and the jaw partis connected to a peripheral side of the hollow zone, such that the jaw partcan be formed by stamping a plate member, and the jaw partis bent upward relative to the body part, facilitating connection between the jaw partand the connecting partof the electric component.

211 220 212 211 212 213 212 213 212 213 213 212 211 Optionally, the body partand the conductive connection partare integrally formed, and the jaw partand the body partare integrally formed with. The jaw partis connected to the edge of the hollow zone, and the shape of the jaw partmatches the shape of the hollow zone, or the area of the jaw partis smaller than the area of the hollow zone, such that the hollow zoneand the jaw partcan be formed by performing cutting, stamping, polishing, or other processes on the body part.

110 111 212 111 212 50 111 In some embodiments, the wall partincludes a connecting holeprovided in a penetrating manner, and the jaw partand the connecting holeare arranged in a corresponding manner, such that the jaw partis capable of connecting to the electric componentvia the connecting hole.

110 111 51 50 111 212 In these embodiments, the wall partis provided with a connecting hole, such that the connecting partof the electric componentis capable of extending into the connecting holeto connect to the jaw part.

51 50 111 212 111 51 50 Optionally, the connecting partof the electric componentextends via the connecting hole. The jaw partis disposed in the connecting hole, and the jaw part and the connecting partof the electric componentare connected to each other.

212 110 120 111 212 110 120 111 212 110 111 111 212 51 50 111 Optionally, the jaw partmay protrude out of the surface of the wall partfacing away from the accommodating spacevia the connecting hole, or the jaw partmay protrude out of the surface of the wall partfacing the accommodating spacevia the connecting hole. Alternatively, the jaw partmay protrude directly out of the surface of the wall partfacing the connecting holeand be disposed in the connecting hole. The jaw partand the connecting partof the electric componentare connected to each other in the connecting hole.

5 7 FIGS.to 212 212 212 213 212 213 51 50 212 a a a a. In some embodiments, as shown in, the jaw partincludes two or more jaw plates, each of the jaw platesis connected to at least one side in the circumferential direction of the hollow zone, and at least two jaw platesare disposed on two sides of the hollow zoneand extend in the direction close to each other, such that the connecting partof the electric componentis capable of being sandwiched between the two jaw plates

212 212 212 213 212 212 51 50 51 212 50 212 a a a a a In these embodiments, the jaw partincludes a plurality of jaw plates, and at least two jaw platesare oppositely disposed on two sides of the hollow zoneand extend in the direction close to each other. By using elastic force of the two jaw plates, an interference fit can be formed between the jaw platesand the connecting partof the electric component, such that the connecting partis capable of being snap-fitted between the two jaw plates. Therefore, the connection mode between the electric componentand the jaw partcan be simplified, and the stability of the electrical connection can be ensured.

212 212 212 212 213 212 212 212 51 50 212 51 50 a a a a a a Optionally, the jaw partincludes three jaw plates. One of the jaw platesand the other two jaw platesare oppositely disposed on two sides of the hollow zone. In addition, the above one jaw plateis correspondingly located centrally between the two jaw plateson the opposite side, such that the three jaw platescan apply balanced pressure to the connecting partof the electric component, ensuring a tighter connection between the jaw partand the connecting partof the electric component.

211 211 212 213 211 212 213 51 50 a a Optionally, in the thickness direction Z of the body partaway from the body part, the jaw plateslocated on the two opposite sides of the hollow zoneare arranged to extend in the direction close to each other. When the jaw plates are away from the body partin the thickness direction Z, the distance between the jaw plateslocated on the two opposite sides of the hollow zonegradually decreases, enabling an interference fit between the jaw plates and the connecting partof the electric component.

211 110 212 110 In some embodiments, the body partis injection molded into the wall part, and the jaw partprotrudes out of the surface of the wall part.

211 110 110 211 211 212 110 51 50 211 110 211 51 212 212 In these embodiments, the body partis injection molded into the wall part, such that the wall partcan provide protection for the body partto alleviate scratches on the body partby other components. The jaw partprotrudes out of the surface of the wall part, facilitating the electrical connection between the jaw part and the connecting partof the electric component. In addition, since the body partis injection molded into the wall part, the positional stability of the body partcan be ensured. When the connecting partis snap-fitted to the jaw part, the impact of the unstable position of the jaw parton the stability of the electrical connection is alleviated.

211 110 212 110 111 212 51 50 111 110 120 111 212 212 51 50 100 4021 110 120 111 212 50 4021 4022 Optionally, the body partis injection molded into the wall part, and the jaw partmay protrude from the inner surface of the wall partfacing the connecting hole. As described above, the jaw partand the connecting partof the electric componentmay be connected to each other in the connecting hole. Alternatively, the jaw part may protrude out of the surface of the wall partfacing or facing away from the accommodating spacevia the connecting hole, to increase the dimension of the jaw partand ensure that the jaw parthas a sufficient contact area with the connecting partof the electric component. For example, when the first housingis the above first upper housing, the jaw part may protrude out of the surface of the wall partfacing away from the accommodating spacevia the connecting hole, such that the jaw partand the connecting member of the electric componentcan be electrically connected to each other between the first upper housingand the second upper housing.

220 110 In some embodiments, the conductive connection partis injection molded into the wall part.

110 220 220 120 In these embodiments, the wall partcan provide protection for the conductive connection part, preventing the conductive connection partfrom being suspended in the accommodating spaceand affecting the mounting of other components.

211 110 220 211 Optionally, both the conductive part and the body partare injection molded into the wall part, such that the reliability of the connection between the conductive connection partand the body partcan be ensured.

200 230 220 210 230 220 210 230 In some embodiments, the electric connectorfurther includes a plug-in end, at least one conductive connection partis connected between the terminaland the plug-in end, and the conductive connection part, the terminal, and the plug-in endthat are connected to one another are integrally formed.

210 230 220 230 220 210 230 200 220 230 40 40 40 In these embodiments, some terminalsare electrically connected to the outside through the plug-in end, such that the other end of some conductive connection partsis connected to the plug-in end. The conductive connection part, the terminal, and the plug-in endthat are connected to one another are integrally formed, which can further simplify the structure of the electric connector. Moreover, there is no need to assemble the conductive connection partand the plug-in endin the high-voltage box. Therefore, the assembly process of the high-voltage boxcan be simplified, and the assembly efficiency of the high-voltage boxis improved, thereby increasing the assembly rate of the battery.

210 210 220 230 210 220 Optionally, as described above, in the plurality of terminals, some terminalsare electrically connected through the conductive connection partand the plug-in end, while some other terminalsmay be connected to two ends of the conductive connection part.

230 220 210 230 220 230 230 220 220 220 The plug-in endmay be connected to one end of the conductive connection partfacing away from the terminal, and extend in the thickness direction Z, such that the plug-in endcan protrude from the conductive connection part, thereby facilitating mutual plug-in connection between the plug-in endand another component. Optionally, the plug-in endincludes a connecting segment and a plug-in segment. The connecting segment is connected to the conductive connection partand extends in the thickness direction Z. The plug-in segment is connected to one end of the connecting segment facing away from the conductive connection part, and extends out of the conductive connection partin the length direction. The plug-in segment and another component may be in mutual plug-in connection.

40 230 230 230 Optionally, the high-voltage boxincludes a plurality of plug-in ends, and the plurality of plug-in endsmay be arranged in parallel, facilitating mutual plug-in connection between the plurality of plug-in endsand the same plug-in component.

40 300 230 300 300 110 In some embodiments, the high-voltage boxfurther includes a plug-in port. The plug-in endis plugged into the plug-in port, and the plug-in portis injection molded on the wall part.

300 230 110 300 100 40 40 40 In these embodiments, the plug-in portconfigured to accommodate the plug-in endis injection molded on the wall part, and there is no need to assemble the plug-in portand the first housingin the high-voltage box. Therefore, the assembly process of the high-voltage boxcan be simplified, and the assembly efficiency of the high-voltage boxis improved, thereby increasing the assembly rate of the battery.

40 230 230 230 300 Optionally, as described above, the high-voltage boxincludes a plurality of plug-in ends, the plurality of plug-in endsmay be arranged in parallel, and the plurality of plug-in endsand the same plug-in portare in mutual plug-in connection.

110 110 120 110 110 120 120 200 110 a a a a a a. In some embodiments, the wall partincludes a top walland a side wallconnected to the peripheral side of the top wall, the top walland the side walldefine, in an enclosing manner, the accommodating space, and the electric connectoris disposed on the top wall

200 110 210 200 50 120 a In these embodiments, the electric connectoris disposed on the top wall, facilitating electrical connection between the terminalsof the electric connectorand electric componentsat different positions in the accommodating space.

220 211 110 220 211 110 110 111 212 111 110 51 50 212 111 110 a a a a. Optionally, as described above, when the conductive connection partand/or the body partare injection molded into the wall part, the conductive connection partand/or the body partmay be injection molded into the top wall. The top wallis provided with the above connecting hole, the jaw partis arranged corresponding to the connecting holeon the top wall, and the connecting partof the electric componentand the jaw partare connected to each other via the connecting holeon the top wall

120 130 40 400 400 120 110 400 410 100 400 130 410 a a a In some embodiments, the side wallis provided with a first snap part; and the high-voltage boxfurther includes a second housing, the second housingis disposed on the side of the side wallfacing away from the top wall, the second housingis provided with a second snap part, and the first housingand the second housingare snap-fitted to each other through the first snap partand the second snap part.

100 400 130 410 100 400 40 100 400 In these embodiments, the first housingand the second housingare snap-fitted to each other through the first snap partand the second snap part, which can simplify the assembly process of the first housingand the second housing, improve the assembly efficiency of the high-voltage box, and ensure the stability of the relative positions between the first housingand the second housing.

400 401 40 130 410 130 410 Optionally, the second housingmay be the bottom housingof the above high-voltage box. The first snap partand the second snap partmay be configured in various ways. For example, the first snap partis a snap hook, the second snap partis a snap hole, and the snap hook is snap-fitted to the snap hole.

130 120 120 130 130 120 130 120 120 130 130 410 a a a Optionally, the first snap partand the side wallare integrally formed, the side wallmay be provided with a snap groove, one end of the first snap partand the bottom wall of the snap groove are connected to each other, and the other end of the first snap part extends out of the snap groove. A gap is provided between the first snap partand the side wallof the snap groove, such that the first snap partcan deform toward the accommodating spaceor away from the accommodating spacerelative to the first snap groove. By utilizing the elasticity of the material of the first snap part, the first snap partcan be snap-fitted to the second snap part.

130 120 410 400 120 a a Optionally, the first snap parton the side wallmay further include a snap hole, and the second snap parton the second housingmay further include a snap hook, such that side wallsare snap-fitted to each other through the snap hole and the snap hook.

120 120 130 130 a Optionally, the side wallincludes two first side walls oppositely disposed in the first direction X and two second side wall oppositely disposed in the second direction Y, and the two first side walls and the two second side walls are connected end-to-end to define, in an enclosing manner, the accommodating space. The first snap parton the first side wall may be a snap hook, and the first snap parton the second side wall may be a snap hole.

40 50 40 In some embodiments of the present application, the embodiments of the present application further provide a battery. The battery includes the high-voltage boxaccording to any one of the above embodiments. Optionally, the electric componentis disposed inside the high-voltage box.

In some embodiments of the present application, the embodiments of the present application further provide an electric device. The electric device includes the battery of any one of the above embodiments, and the battery is used to provide electrical energy.

The electric device may be any one of the aforementioned devices or systems that use the battery.

3 7 FIGS.to 40 40 100 110 120 110 120 50 200 100 200 210 220 220 210 210 210 50 110 110 120 110 110 120 120 200 110 210 211 212 211 213 212 213 211 110 111 212 111 212 50 111 211 220 110 212 110 111 110 120 212 212 212 213 212 213 51 50 212 200 230 220 210 230 220 210 230 40 300 230 300 300 110 a a a a a a a a a a a a a a Referring to, the embodiments of the present application provide a high-voltage boxfor a battery. The high-voltage boxincludes: a first housing, having a wall partand an accommodating spacedefined by the wall partin an enclosing manner, where the accommodating spaceis configured to accommodate an electric component; and an electric connector, disposed in the first housing, where the electric connectorincludes a plurality of terminalsand conductive connection parts, each of the conductive connection partsis connected to at least one of the terminalsand is integrally formed with the terminal, and the terminalis configured to connect to the electric component. The wall partincludes a top walland a side wallconnected to the peripheral side of the top wall, the top walland the side walldefine, in an enclosing manner, the accommodating space, and the electric connectoris disposed on the top wall. The terminalincludes a body partand a jaw partthat are integrally connected, the body partdefines, in an enclosing manner, a hollow zone, and the jaw partis connected to the edge of the hollow zoneand is bent upward in the thickness direction Z of the body part. The top wallincludes a connecting holeprovided in a penetrating manner, and the jaw partand the connecting holeare arranged in a corresponding manner, such that the jaw partis capable of connecting to the electric componentvia the connecting hole. The body partand the conductive connection partare integrally injection molded into the top wall. The jaw partprotrudes out of the inner surface of the top wallfacing the connecting holeto the surface of the top wallfacing away from the accommodating space. The jaw partincludes two or more jaw plates, each of the jaw platesis connected to at least one side in the circumferential direction of the hollow zone, and the at least two jaw platesare disposed on two sides of the hollow zoneand extend in the direction close to each other, such that the connecting partof the electric componentis capable of being sandwiched between the two jaw plates. The electric connectorfurther includes a plug-in end, at least one conductive connection partis connected between the terminaland the plug-in end, and the conductive connection part, the terminal, and the plug-in endthat are connected to one another are integrally formed. The high-voltage boxfurther includes a plug-in port. The plug-in endis plugged into the plug-in port, and the plug-in portis injection molded on the wall part.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than limit the same. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that modifications can still be made to the technical solutions recorded in the foregoing embodiments, or equivalent substitutions to some or all of the technical features can be made. However, such modifications or substitutions do not make the spirit of the corresponding technical solutions deviate from the scope of the technical solutions in the embodiments of the present application, and shall all fall within the scope of claims and specification of the present application. In particular, the technical features mentioned in the embodiments can be combined in any manner, provided that there is no structural conflict. The present application is not limited to the specific embodiments disclosed herein but includes all the technical solutions that fall within the scope of the claims.